Improvement in draft-equalizers



v I. P. GADMA'N.

Draft-Equalizer.

No. 217,267. Patented July 8,1879.

NYPEI'ERS, PHOTD LITHOGRAPHEIL WASHINGTON. D C.

. strain is equally distributed to the respective UNITED STATES PA'rnn r gr gron ISAAC P. GADMAN, OF BELOIT, WISCONSIN, ASSIGNOR OF ONE-HALF HIS RIGHT TO WILSON It. SMITH, OF SAME PLAQE.

IMPROVEMENT IN DRAFT-EQUALIZER S.

Specification forming part of Letters Patent No. 217,267, dated July 8, 1879 application filed June 6, 1879.

To all whom it may concern:

Be it known that I, IsAAG P. CADMAN, of Beloit, in the county of Rock and State of Wiscousin, have invented certain new and useful Improvements in Draft-Equalizers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to certain improvements in draft-equalizers, and is especially designed for plows and other agricultural implements; and it consists in the combination, with the draft-pole or ton gne' of the plow or otherilnplement, ofa compound lever, to which the single-trees are attached, whereby the horses.

The drawing represents a top view ofa draftpole or tongue of a plow or other agricultural implement, in which the letter Aindicates the tongue or draftpole, and B a side brace or ofl'set draft-iron, to which the two levers of g The letter H indicates a strap extending 3 from the pivot of the lever E to that of the lever F, serving to brace the two.

To the ends of the lever E are secured the links I I, which extend forward, the links I at the outer end embracing at their forward extremities the single-tree K. To said links I are pivoted supplementary links L, which at their other extremities are pivoted to the outer end of the lever F. The links I extend forward similarly to thelinks I, the forward ex-l tremities embracing a pivoted bar, M, to the ends of which are secured the single-trees N 0.

To the links I are secured the ends of supusually employed are hitched to the singletrees N 0 at each side of the draft-pole or tongue, as usual. The thirdhorse is hitched to the single-tree K, andthe arrangement of the compound levers is such that the draft of the single horse equalizes the draft of the two fhorses, so as to give an even strain upon the plow or other implement.

I claim- In a draft-equalizer, the combination of the draft pole or tongue and the offset draft-iron, the compound leverspivoted thereto, the links I to which the sin gle-trees are attached, and the supplementary connecting-links uniting the bar F to the links I and I, all arranged to operate substantially in the manner specified.

In testimony that Iclaim the foregoing I have hereunto set my hand this 2d day of June, 1879.

ISAAC P. GADMAN. Witnesses:

LORENZO G. WALKLY, F. A. DUNNELL. 

